It is a new variation on the commonly used lmao in msn messaging. It stands for 'Laugh My Tight Toosh Off'. It is often accompanied with the tongue bearing smiley emoticon in an msn conversation and follows a humorous remark.
by Jim June 18, 2006
by jim March 04, 2003
a seriers of more then one or more persons with bombs strap around there waist to kill or hurt innocent people more then 4 bombs or more going off in iraq all the time.
by JiM April 08, 2005
When one is obsessed with learning various insults, compliments, situations, and other appropriate paraphenalic vocabulary dealing with one's sack
Jesus fucking Christ, I just learned twenty new sack words on urbandictionary.com... I've gone SACK CRAZY
by Jim August 31, 2003